win 2012R2 系统优化记录

一、组策略

WIN键+R键，输入GPEDIT.MSC，进入组策略设置。

1、计算机配置，Windows设置，安全设置，帐户策略，密码策略：“密码必须符合复杂性要求”，设置为“已禁用”。

2、计算机配置，Windows设置，安全设置，帐户策略，密码策略：“密码最短使用期限”，设置为“0”（无期限）。

3、计算机配置，Windows设置，安全设置，本地策略，安全选项，“无需按 Ctrl+Alt+Del”，设置为“已启用”。

4、计算机配置，管理模板，系统，显示“关闭事件跟踪程序”，设置为“已禁用”。

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kubelet服务启动失败问题处理

1.问题重现

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[root@leoheng-k8s ~]# systemctl enable kubelet && systemctl start kubelet
[root@leoheng-k8s ~]# systemctl status  kubelet
● kubelet.service - kubelet: The Kubernetes Node Agent
   Loaded: loaded (/usr/lib/systemd/system/kubelet.service; enabled; vendor preset: disabled)
  Drop-In: /usr/lib/systemd/system/kubelet.service.d
           └─10-kubeadm.conf
   Active: activating (auto-restart) (Result: exit-code) since Thu 2021-01-28 09:56:54 CST; 7s ago
     Docs: https://kubernetes.io/docs/
  Process: 2717 ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
 Main PID: 2717 (code=exited, status=255)

Jan 28 09:56:54 leoheng-k8s systemd[1]: Unit kubelet.service entered failed state.
Jan 28 09:56:54 leoheng-k8s systemd[1]: kubelet.service failed.
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单机模式启动问题处理

1.问题重现

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[root@leoheng-k8s ~]# kubectl taint nodes --all node-role.kubernetes.io/master
error: at least one taint update is required
[root@leoheng-k8s ~]# kubectl taint nodes --all node-role.kubernetes.io/master-
The connection to the server localhost:8080 was refused - did you specify the right host or port?
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部署K8S dashboard报错处理

1.执行报错

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[root@leoheng-k8s ~]# kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
Unable to connect to the server: read tcp 172.18.192.80:59570->151.101.108.133:443: read: connection reset by peer
[root@leoheng-k8s ~]#
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部署K8S单机环境

1.部署基础环境

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[root@leoheng-k8s ~]# vim sys_init.sh 
#!/bin/bash
yum install -y yum-utils git* vim lrzsz wget g++ gcc yum-utils device-mapper-persistent-data lvm2
systemctl stop firewalld
setenforce 0
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum makecache fast
yum install -y docker-ce*
systemctl start docker
systemctl status docker
systemctl enable docker
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K8S部署 Dashboard UI

1.yaml安装部署Dashboard

1.以官方yaml部署Dashboard UI

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[root@leoheng-k8s ~]# kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.0.0/aio/deploy/recommended.yaml
namespace/kubernetes-dashboard created
serviceaccount/kubernetes-dashboard created
service/kubernetes-dashboard created
secret/kubernetes-dashboard-certs created
secret/kubernetes-dashboard-csrf created
secret/kubernetes-dashboard-key-holder created
configmap/kubernetes-dashboard-settings created
role.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created
rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created
deployment.apps/kubernetes-dashboard created
service/dashboard-metrics-scraper created
deployment.apps/dashboard-metrics-scraper created
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tag:

    缺失模块。
    1、请确保node版本大于6.2
    2、在博客根目录（注意不是yilia-plus根目录）执行以下命令：
    npm i hexo-generator-json-content --save

    3、在根目录_config.yml里添加配置： 

      jsonContent:
    meta: false
    pages: false
    posts:
      title: true
      date: true
      path: true
      text: false
      raw: false
      content: false
      slug: false
      updated: false
      comments: false
      link: false
      permalink: false
      excerpt: false
      categories: false
      tags: true

比别人优秀不重要，重要的是比昨天的自己更优秀。